Question

N digit numbers formed using only three digits 2,5,7.The smallest value of n for which 900 digits can be formed

Answer 1

Hey mate here is your answer

Question:

A certain gas has p c = 0.913 and v c = 0.653 kj/kg k. Find the molecular weight and the gas constant r of the gas

Answer:

Step-by-step explanation:

we looking smallest integer  n such that

3^n≥900   or

in other words since log function is increasing

 n ln(3)≥ln(900)

 or dividing by ln(3)

   n≥6.19

thus n=7

hope it is helpful for you